Monitoring of the Environmental Radioactivity at Elobeid Area, North Kordofan State, Sudan
Abstract
The present work deals with the monitoring of the radioactivity at Elobeid area, North Kordofan State, in the central Sudan. The ivestigation was done for the first time. Twelve basement rock samples were taken from three localities. The high resolution in situ gamma ray spectrometer system was used to examine the natural radioactivity levels. The mean weight values of the elemental and the activity concentration levels of 238U and 40K are 3.14 and 4.95 ppm with 39.7 and 1502 Bq/Kg in the migmatite gneisses, while the mean weight values and the activity concentration levels are 4.23 and 2.67 ppm with 52.5 and 809 Bq/Kg in the micaschist respectively. These results are conidered higher than the corresponding global average values proposed by United Nations Scientific Committee on the Effects of Atomic Radiation publications for normal radiation background areas, except the values for the 238U in the migmatite gneiss, approves the global average values. The study area requires further investigation of soil geochemistry, and the activity concentration levels of radionuclides in soil and groundwater.
How to cite this article:
Abdallsamed MI, Ibrahim EM, Salih MA et al. Monitoring of the Environmental Radioactivity at Elobeid Area, North Kordofan State, Sudan. J Adv Res Geo Sci Rem Sens 2020; 7(1&2): 17-23.
References
2. Alnour AI, Wagiran H, Ibrahim N et al. Natural radioactivity measurements in the granite reock of quarrysites, Johor, Malaysia. Radiat Phys Chem 2012b; 81: 1842-1847.
3. Anjos RM, Veiga R, Soares T et al. Natural radionuclide distribution in Brazilian commercial granites. Radiation Measurements 2005; 39: 245-253.
4. Arafa W. Specific activity and hazard of granite samples collected from the Eastern desert of Egypt. J Environ Radioact 2004; 75: 315-327.
5. Eisenbud M, Gesell T. Environmental Radioactivity from Natural, Industrial and Military Sources. Acad. press, San Diego, CApp. 1997; 134-200.
6. El-Mageed AI, El-Kamel AH, Abbady A et al. Assessment of natural and anthropogenic radioactivity levels in rocks and soils in the environments of Juban town in Yemen Radiation. Physics and Chemistry 2011; 80: 710-715.
7. El-Dine W, El-Shershaby A, Ahmed F et al. Measurement of radioactivity and radon exhalation rate in different kinds of marbles and granites. Appl Radiat Isot 2001; 55: 853-860.
8. Faure G. Principles of Isotope Geology, second ed. John Wiley & Sons, London. 1986.
9. Florou H, Kritidis P. Gamma radiation measurements and dose rate in the coastal areas ofa volcanic island, Aegean Sea, Greece. Radiat Prot Dosim 1992; 45: (1/4): 277-279.
10. Glover TT, Akiti, Osae S. Natural radioactivity in some geological formation in the Accra Plains. Elixir Geoscience 2014; 76: 28144-28150.
11. Hamby DM, Tynybekov AK. Uranium, thorium and potassium in soils along the shore of the Lake Issyk-Kyol in the Kyrghyz Republic. Environ Monitor Assess 2002; 73: 01-108.
12. Ibrahiem NM, Abd El Ghani, Shawky AH et al. Measurement of radioactivity levels in soil in Nile Delta and Middle Egypt. Health Phys 1993; 4: 620-627.
13. International Atomic Energy Agency (IAEA). Construction and Use of Calibra- tion Facilities for Radiometric Field Equipment. Technical Reports Series no. 309, IAEA, Vienna. 1989.
14. International Atomic Energy Agency (IAEA). Radiation protection and the management of radioactive waste in the oil and gas industry. International Atomic Energy Agency 2003; 173.
15. Larsen ES, Gottfried D. Uranium and thorium in selected sites of igneous rocks. Am J Sci 1960; 258A: 151-169.
16. Kearey P, Brooks M, Hill I. An Introduction to Geophysical Exploration, 3rd ed., Oxford: Blackwell Science. 2002; 262.
17. Malczewski D, Teper L, Dorda J. Assessment of natural and anthropogenic radioactivity levels in rocks and soils in the environs of S ´wierado´w Zdro´j in Sudetes, Poland, by in situ gamma-ray spectrometry. J Environ Radioact 2004; 73: 233-245.
18. Malczewski D, Dziurowicz M. 222Rn and 220Rn emanations as a function of the absorbed a-doses from select metamict minerals. Am Miner 2015; 100: 1378-1385.
19. Maxwell O, Wagiran H, Ibrahim N et al. Comparison of activity concentration of 238U, 232Th and 40K in different Layers of subsurface Structures in Dei-Deiand Kubwa, Abuja, north central Nigeria Omeje Radiation Physics and Chemistry. 2013; 91: 70-80.
20. Mukhtar A. Environmental Study for Radionuclides at Miri Lake. Ph.D. Thesis, Faculty of Science, Department of Physics, University of Khartoum. 2003.
21. Mireles F, Davila JI, Quirino LL et al. Natural soil gamma radioactivity levels and resultant population dose in the cities of Zacatecas and Guadalupe, Zacatecas, Mexico. Health Phys 2003; 84(3): 368-372.
22. NRC. Evaluation of Guidelines for exposures to Technologically Enhanced Naturally Occurring Radioactive Materials, National Research Council, Washington, DC. 1999.